WO2023138111A1 - 安全型高频电刀手术器械 - Google Patents
安全型高频电刀手术器械 Download PDFInfo
- Publication number
- WO2023138111A1 WO2023138111A1 PCT/CN2022/124306 CN2022124306W WO2023138111A1 WO 2023138111 A1 WO2023138111 A1 WO 2023138111A1 CN 2022124306 W CN2022124306 W CN 2022124306W WO 2023138111 A1 WO2023138111 A1 WO 2023138111A1
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- WO
- WIPO (PCT)
- Prior art keywords
- jaw
- locking
- control
- blade
- wrench
- Prior art date
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- 238000005452 bending Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2946—Locking means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
Definitions
- the invention relates to the technical field of surgical instruments, in particular to a safe high-frequency electrosurgical surgical instrument.
- the operating end of the high-frequency electrosurgical instrument has jaws and a blade, so that it has multiple functions of clamping tissue, coagulating tissue with high-frequency electric energy, and cutting tissue with a blade.
- the interior of the high-frequency electrosurgical surgical instrument needs at least a jaw control mechanism to control the opening and closing of the jaws to clamp the tissue and a blade control mechanism to control the blade to stretch and cut the tissue.
- the jaw control mechanism and the blade control mechanism are set independently to facilitate the step-by-step operation of the jaws and the blade.
- the usual operation process of high-frequency electrosurgical surgical instruments is to first control the closure of the jaws to clamp the tissue, and then use the blade to cut. Such an operation process needs to ensure the closure of the jaws during the blade cutting process, that is, it needs to continuously control the jaw control mechanism.
- the control end of the existing jaw control mechanism is mostly a handle, which has high requirements for the operator's grip stability.
- Some existing high-frequency electrosurgical instruments are equipped with a locking mechanism to lock the jaw control mechanism, but the locking mechanism is likely to affect the operational flexibility of the jaw control mechanism, resulting in locking failure or reset failure after locking, resulting in unsmooth opening and closing of the jaws, resulting in inconvenient operation.
- the blade control mechanism and the jaw control mechanism work independently, and in order to facilitate hand-held operation, the blade control mechanism and the jaw control mechanism are often arranged on the handle of the high-frequency electrosurgical surgical instrument.
- the purpose of the present invention is to overcome the shortcomings of the prior art and provide a safe high-frequency electrosurgical surgical instrument and surgical instrument.
- the safe high-frequency electrosurgical instrument includes a housing, a shaft member, a jaw assembly, a control wrench, a blade, and a control button.
- the control wrench controls the opening and closing of the jaw assembly through the jaw control mechanism.
- the control button drives the blade through the blade control mechanism to move and cut. The movement direction of the control wrench and the control button is consistent, and a locking mechanism is provided between the control wrench and the control button.
- the undercut is arranged on the control button or on the trigger link of the blade control mechanism; in the first state, the jaw assembly is opened, the locking projection is engaged with the undercut, and the control button cannot be moved; in the second state, the jaw assembly is closed, the locking projection is separated from the undercut, the control button can move to drive the blade to cut, and after the control wrench retreats, the locking projection is engaged with the undercut again.
- the shaft member extends forward from the front end of the housing and defines a longitudinal axis
- the shaft member includes an inner sleeve and an outer sleeve
- the jaw assembly is disposed at the front end of the shaft member
- the blade is disposed inside the inner sleeve.
- the jaw assembly includes a first jaw disposed at the front end of the inner sleeve and a second jaw disposed at the front end of the outer sleeve, the first jaw is hinged by the first pivot pin and the second jaw, the tail end sides of the first jaw and the second jaw are both provided with guide grooves, the front end of the inner sleeve is connected with the first jaw through the second pivot pin, and both ends of the second pivot pin are movably fixed in the guide groove, the guide groove is closed by a stopper, and the inner sleeve drives the first jaw and the second jaw through longitudinal movement The mouth opens and closes.
- the jaw control mechanism includes a closing link, a push block and a jaw spring.
- the push block is sleeved on the inner sleeve and abuts against the jaw spring sleeved at the tail end of the inner sleeve.
- the control wrench is connected to the push block through the closing link, and drives the push block and the inner sleeve to move longitudinally synchronously.
- the inner wall of the housing is provided with a push block guide groove defining the moving direction of the push block, and the push block is slidably engaged in the push block guide groove.
- the tail end of the push block is abutted against a jaw return spring, and the jaw return spring is clamped in a limiting groove on the inner wall of the housing.
- a wrench locking mechanism is provided between the bottom of the control wrench and the housing, the wrench locking mechanism includes a locking block located on the side of the control wrench and a locking bar located in the housing, the surface of the locking block is formed with a slot with a sliding guide surface, a limiting slot is provided in the housing, the locking bar moves elastically along the limiting slot, and its tail end is pivotally connected with the housing. Slot slide.
- a Z-shaped/concave guide surface is formed on the surface of the card slot, and an inner bending part is formed in the middle part thereof.
- the upper and lower sides of the side wall of the housing along the pivoting direction of the lock lever are abutted with elastic members.
- two conductive rings are respectively arranged outside the outer casing, and the two conductive rings are respectively electrically connected to the first jaw and the second jaw through wires.
- the two conductive rings slide against a conductive sheet respectively, and the two conductive sheets are fixed on the inner wall of the housing, and are respectively connected to a power supply through wires; a knob is provided at the front end of the housing, and the knob is fixedly connected to the outer casing and drives the outer casing to rotate synchronously.
- the knife rod of the blade is passed through the inner sleeve, and the blade is movably locked in a movable groove between the first jaw and the second jaw.
- the blade control mechanism includes a trigger link, a knife feed buckle and a blade return spring
- the knife feed buckle is connected to the knife rod
- the blade return spring is sleeved on the inner sleeve, and abuts against the knife feed buckle
- the control button is connected to the knife feed buckle through the trigger link
- a button guide groove is provided in the housing, the control button slides along the button guide groove and controls the knife feed buckle to move along the inner sleeve to drive the blade to move.
- the control wrench is provided with a protruding post
- the protruding post is located above the locking bump
- the trigger link is provided with a recess matching the protruding post
- the protruding post and the recess of the trigger link form an auxiliary retraction mechanism.
- the locking structure is set so that the control wrench can restrict the control button.
- the locking projection and the undercut are engaged so that the control button cannot be moved, that is, the blade cannot be stretched out;
- the jaw assembly is closed, the locking projection moves backward and separates from the undercut, and the control button can move and drive the blade to protrude, thereby ensuring that the blade only moves and cuts after the tissue is clamped by the jaws, so as to ensure the safety of the operation and avoid triggering the blade to move and cut by mistake;
- a wrench locking mechanism is set between the bottom of the control wrench and the housing to automatically lock the movement of the wrench, reducing the control pressure on the operator's hand and reducing the difficulty of operation. Due to the Z-shaped slot, the position of the control wrench relative to the housing can be locked or unlocked by repeated movement of the control wrench, and the operation is smooth;
- Fig. 1 the schematic diagram of the embodiment of the present invention
- Figure 1-1 A schematic diagram of another possible embodiment of the present invention.
- Fig. 2 the schematic diagram of jaw assembly in the embodiment of the present invention
- FIG. 3 Exploded schematic diagram of the shaft assembly in the embodiment of the present invention
- Figure 4 A partial exploded schematic view of the shaft assembly in the embodiment of the present invention.
- Figure 5 a partial structural schematic diagram of an embodiment of the present invention
- Figure 6 a schematic diagram of the first state of the embodiment of the present invention.
- Figure 7 A schematic diagram of switching from the first state to the second state according to the embodiment of the present invention.
- Figure 8 A schematic diagram of the embodiment of the present invention switching from the first state to the second state
- Figure 9 a schematic diagram of the second state of the embodiment of the present invention.
- Figure 10 Internal schematic diagram of another embodiment of the present invention.
- the present invention discloses a safe high-frequency electrosurgical instrument, including a housing 1, a shaft member, a jaw assembly, a control wrench 2, a blade 3, and a control button 4.
- the control wrench 2 controls the opening and closing of the jaw assembly through a jaw control mechanism
- the control button 4 drives the blade 3 to move and cut through a blade control mechanism.
- the undercut 6 snapped by the protrusion 5 is formed, the locking protrusion 5 is arranged on the control wrench 2, the undercut 6 is arranged on the control button 4 or on the trigger link 402 of the blade control mechanism; in the first state, the jaw assembly is opened, the locking protrusion 5 is engaged with the undercut 6, and the control button 4 is immovable; in the second state, the jaw assembly is closed, the locking protrusion 5 is separated from the undercut 6, the control button 4 can move to drive the blade 3 to cut, and the control wrench After the hand 2 retreats, the locking projection 5 engages with the undercut 6 again.
- a locking mechanism is provided between the control wrench 2 and the control button 4, so that the control wrench 2 plays a limiting role on the control button 4.
- the locking projection 5 and the undercut 6 are snapped together, so that the control button 4 is movable, that is, the blade 3 cannot be stretched out; under the closed state of the jaw assembly, the locking projection 5 moves backward and is separated from the underside 6, so that the control button 4 has a movable space to move to drive the blade 3 for telescopic cutting.
- the setting of the locking mechanism can ensure that the blade 3 Only after the jaws are closed and clamped to hold the tissue can the mobile cutting be performed, so as to ensure the safety of use and avoid false cutting caused by triggering the movement of the blade 3 by mistake.
- the locking projection 5 is arranged on the extension of the control wrench 2 inside the housing 1 , and the undercut 6 is preferably arranged on the tail end edge of the control button 4 , and the locking projection 5 is engaged with the undercut 6 to form a locking function, which directly restricts the movement of the control button 4 .
- the undercut 6 can also be arranged at other suitable positions on the control button 4 .
- the locking protrusion 5 is not in contact with the control button 4 , and the undercut 6 is arranged at any position such as the side or side of the trigger link 402 that can ensure its engagement with the locking protrusion 5 .
- the locking protrusion 5 engages with the undercut 6 to indirectly limit the movement of the control button 4 by limiting the movement of the trigger link 402 to form a locking function. Its working principle is: the trigger link 402 abuts against the locking projection 5 , and the torque of the contact pressure on the control wrench 2 is consistent with the retraction direction of the control wrench 2 , so as to achieve the purpose of stopping the control button 4 .
- the shaft member extends forward from the front end of the housing 1 and defines a longitudinal axis
- the shaft member includes an inner sleeve 701 and an outer sleeve 702
- the jaw assembly is arranged at the front end of the shaft member
- the blade 3 is arranged inside the inner sleeve 701.
- the jaw assembly in this solution includes a first jaw 201 arranged at the front end of the inner sleeve 701 and a second jaw 202 arranged at the front end of the outer sleeve 702, the first jaw 201 is hinged by the first pivot pin 203 and the second jaw 202, the tail end sides of the first jaw 201 and the second jaw 202 are all provided with guide grooves 204, the front end of the inner sleeve 701 connects with the first jaw 2 through the second pivot pin 205 01 connection, and the two ends of the second shaft pin 205 are movably locked in the guide groove 204, and the inner sleeve 701 drives the first jaw 201 and the second jaw 202 to open and close by moving longitudinally.
- the guide groove 204 is closed by a blocking piece 206, and the blocking piece 206 acts as a limiter for the first shaft pin 203 and the second shaft pin 205.
- the first shaft pin 203 and the second shaft pin 205 may also form ends with diameters larger than their shafts to play a position-limiting role, or use other components with a position-limiting role.
- the working principle of the jaw assembly is as follows: when the inner sleeve 701 moves forward, it will drive the second shaft pin 205 to move forward in the guide groove 204 synchronously.
- the forward movement of the second shaft pin 205 will make the front end of the first jaw 201 upturned, so that the jaw assembly is opened; when the inner sleeve 701 moves backward, it will drive the second shaft pin 205 Synchronously move backward in the guide groove 204, so that the front end of the first jaw 201 moves down until it fits with the second jaw 202, so that the jaw assembly is closed.
- the jaw control mechanism includes a closing link 207, a push block 208 and a jaw spring 209.
- One end of the extension of the control wrench 2 located in the housing 1 is pivotally connected to the housing 1, and the other end is pivotally connected to the closing link 207.
- the push block 208 is sleeved on the inner sleeve 701 and abuts against the jaw spring 209 sleeved on the tail end of the inner sleeve 701. 2 is connected to the push block 208 through the closing link 207, and drives the push block 208 and the inner sleeve 701 to move longitudinally synchronously.
- the inner wall of the housing 1 is provided with a push block guide groove 210 that limits the moving direction of the push block 208, and the push block 208 is slidably engaged in the push block guide groove 210 to ensure that the moving direction of the push block 208 is consistent with the extension direction of the inner sleeve 701, improve the smoothness of movement of the inner sleeve 701, and avoid friction between it and other components.
- the tail end of the push block 208 abuts against a jaw return spring 211 , and the jaw return spring 211 is clamped in a limiting groove 212 on the inner wall of the housing 1 .
- the arrangement of the jaw return spring 211 increases the driving force for the reset of the push block 208 to ensure the reset of the push block 208 .
- a wrench locking mechanism is provided between the bottom of the control wrench 2 and the housing 1 , and the wrench locking mechanism includes a locking block 213 located on the side of the control wrench 2 and a locking bar 214 located in the handle of the housing 1 .
- the tail end of the locking rod 214 is pivotally connected to the housing 1, and elastic members 217 are symmetrically abutted on the upper and lower sides of the moving direction.
- the elastic members 217 are preferably springs. In other embodiments, the elastic members 217 can also be made of other elastic structures.
- the elastic member 217 is arranged symmetrically to ensure the force balance on the upper and lower sides of the locking bar 214 and to ensure that the locking bar 214 is kept at a constant position.
- the locking bar 214 in this preferred embodiment is kept in a slightly downwardly inclined state, so that the front end of the locking slot 215 is always higher than the front end of the locking bar 214, so that when the locking bar 215 is close to the locking bar 214, the locking bar 214 can be driven to move along the outer contour of the locking slot 215.
- the locking rod 214 slides and engages in the arc-shaped guide groove 218 arranged in the housing 1, and moves in an arc along the arc-shaped guide groove 218.
- the arc-shaped guide groove 218 acts as a limit to the movement of the lock rod 214, further improving the movement stability of the lock rod 214.
- a locking groove 215 is formed on the surface of the locking block 213 , a Z-shaped/concave guiding surface 216 is formed on the surface of the locking block 215 , and an inner bending portion 220 is formed in the middle thereof.
- the front end of the locking bar 214 has a convex portion 219, the locking block 213 drives the convex portion 219 to slide along the guide surface 216 by moving relative to the locking bar 214, and the concave structure of the inner bending portion 220 plays a locking role on the convex portion 219 relative to the locking bar 214.
- the protrusion 219 slides out of the inner bending portion 220 , the locking block 213 and the locking bar 214 are unlocked.
- two conductive rings 703 are arranged outside the outer casing 702 , and the two conductive rings 703 are electrically connected to the first jaw 201 and the second jaw 202 respectively through wires.
- the two conductive rings 703 slide against a conductive piece 704 respectively, and the two conductive pieces 704 are fixed on the inner wall of the housing 1, and are respectively connected to the power supply through wires; the front end of the housing 1 is provided with a knob 9, and the knob 9 is fixedly connected to the outer sleeve 702 and drives the outer sleeve 702 to rotate synchronously.
- the conductive piece 704 is set to cooperate with the conductive ring 703, so that the outer sleeve 702 can freely rotate following the knob 9 without being restricted by the wire while ensuring current conduction.
- the knife rod 301 of the blade 3 is installed in the inner sleeve 701, and the blade 3 is movably fixed in the movable groove 221 between the first jaw 201 and the second jaw 202, and the movable groove 221 limits the telescopic direction of the blade 3.
- the blade control mechanism includes a trigger link 402 , a knife feed buckle 403 and a blade return spring 404 , the knife feed buckle 403 is connected to the knife rod 301 , and the knife rod 301 can rotate relative to the knife feed buckle 403 .
- the blade return spring 404 is sleeved on the inner sleeve 701 and abuts against the feed buckle 403.
- the control button 4 is connected to the feed buckle 403 through the trigger link 402.
- the housing 1 is provided with a button guide groove 405.
- the control button 4 slides along the button guide groove 405 and controls the knife feed buckle 403 to move along the inner sleeve 701 to drive the blade 3 to move.
- the connection between the trigger link 402 and the knife feed buckle 403 is a waist-shaped hole.
- the control wrench 2 in the present invention is provided with a boss 8, the boss 8 is located above the locking bump 5, and the trigger link 402 is provided with a recess that matches the boss 8, and the boss 8 and the recess of the trigger link 402 form an auxiliary retraction mechanism. 4 and back synchronously following the trigger link 402.
- the protrusion 8 cooperates with the trigger link 402 to form an auxiliary retraction mechanism, which can cooperate with the jaw return spring 211 to play an auxiliary retraction function for the control button 4.
- the protrusion 8 will drive the trigger link 402 to retreat synchronously, so as to achieve the purpose of driving the control button 4 to retreat synchronously.
- the boss 8 may not be provided on the control wrench 2 , and the locking projection 5 is used to replace the function of the boss 8 , so that the locking projection 5 cooperates with the trigger link 402 to form an auxiliary retraction mechanism. Its working principle is: when the control wrench 2 retreats, the locking projection 5 will abut against the trigger link 402 to drive the trigger link 402 to retreat synchronously, so as to drive the control button 4 to retreat synchronously.
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Abstract
Description
Claims (15)
- 安全型高频电刀手术器械,其特征在于:包括壳体(1)、轴杆构件、钳口组件、控制扳手(2)、刀片(3)、控制按钮(4),所述控制扳手(2)通过钳口控制机构控制所述钳口组件的开合,所述控制按钮(4)通过刀片控制机构驱动所述刀片(3)进行移动切割,所述控制扳手(2)和控制按钮(4)的移动方向一致,且所述控制扳手(2)和控制按钮(4)之间设置有锁止机构,所述锁止机构由锁止凸块(5)和能够与所述凸块(5)卡接的倒扣(6)构成,所述锁止凸块(5)设置于所述控制扳手(2)上,所述倒扣(6)设置于所述控制按钮(4)上或设置于所述刀片控制机构的触发连杆(402)上;第一状态下,所述钳口组件张开,所述锁止凸块(5)和倒扣(6)卡接,所述控制按钮(4)不可移动;第二状态下,所述钳口组件闭合,所述锁止凸块(5)与所述倒扣(6)分离,所述控制按钮(4)可以移动驱动所述刀片(3)切割,所述控制扳手(2)回退后,所述锁止凸块(5)重新与所述倒扣(6)卡接。
- 根据权利要求1所述的安全型高频电刀手术器械,其特征在于:所述轴杆构件自所述壳体(1)的前端向前延伸并限定纵向轴线,所述轴杆构件包括内套管(701)和外套管(702),所述钳口组件设置于所述轴杆构件的前端,所述刀片(3)设置于所述内套管(701)的内部。
- 根据权利要求2所述的安全型高频电刀手术器械,其特征在于:所述钳口组件包括设置于所述内套管(701)前端的第一钳口(201)和设置于所述外套管(702)前端的第二钳口(202),所述第一钳口(201)通过第一轴销(203)和第二钳口(202)铰接,所述第一钳口(201)和第二钳口(202)的尾端侧部均设置有导向槽(204),所述内套管(701)的前端通过第二轴销(205)与所述第一钳口(201)连接,且所述第二轴销(205)的两端活动卡设于所述导向槽(204)内,所述导向槽(204)由挡片(206)封闭,所述内套管(701)通过纵向移动驱动所述第一钳口(201)和第二钳口(202)进行开合。
- 根据权利要求3所述的安全型高频电刀手术器械,其特征在于:所述钳口控制机构包括闭合连杆(207)、推块(208)和钳口弹簧(209),所述推块(208)套设于所述内套管(701),并与套设于所述内套管(701)尾端的所述钳口弹簧(209)抵接,所述控制扳手(2)通过所述闭合连杆(207)与所述推块(208)连接,并驱动所述推块(208)、内套管(701)同步做纵向移动。
- 根据权利要求4所述的安全型高频电刀手术器械,其特征在于:所述壳体(1)的内壁设置有限定所述推块(208)移动方向的推块导向槽(210),所述推块(208)滑动卡设于所述推块导向槽(210)内。
- 根据权利要求5所述的安全型高频电刀手术器械,其特征在于:所述推块(208)的尾端抵接有钳口复位弹簧(211),所述钳口复位弹簧(211)卡设于所述壳体(1)的内壁上的限位槽(212)内。
- 根据权利要求1所述的安全型高频电刀手术器械,其特征在于:所述控制扳手(2)的底部和所述壳体(1)之间设置有扳手锁止机构,所述扳手锁止机构包括位于所述控制扳手(2)的侧部的锁止块(213)和位于所述壳体(1)内的锁杆(214),所述锁止块(213)的表面形成有具含滑动导向面的卡槽(215),所述壳体(1)内设有限位槽(218),所述锁杆(214)沿所述限位槽(218)弹性移动,其尾端与所述壳体(1)枢轴连接,所述锁杆(214)前端具有凸部(219),使所述锁止块(213)通过相对所述锁杆(214)的移动驱动所述凸部(219)沿卡槽(215)滑动。
- 根据权利要求7所述的安全型高频电刀手术器械,其特征在于:所述卡槽(215)的表面形成有Z型/凹型的导向面(216),其中间部形成有内折弯部(220),当所述凸部(219)沿所述导向面(216)滑动至所述内折弯部(220)时,所述锁止块(213)和所述锁杆(214)锁止;当所述凸部(219)滑出所述内折弯部(220)时,所述锁止块(213)和所述锁杆(214)解锁。
- 根据权利要求8所述的安全型高频电刀手术器械,其特征在于:所述壳体(1)的侧壁上沿所述锁杆(214)枢转方向的上下两侧抵接有弹性件(217)。
- 根据权利要求3所述的安全型高频电刀手术器械,其特征在于:所述外套管(702)外分别设置有两个导电环(703),两个所述导电环(703)分别通过导线与所述第一钳口(201)、第二钳口(202)电性连接。
- 根据权利要求10所述的安全型高频电刀手术器械,其特征在于:两个所述导电环(703)分别滑动抵接有一导电片(704),两个所述导电片(704)固设于所述壳体(1)的内壁上,且分别通过导线连通电源;所述壳体(1)的前端设置有一旋钮(9),所述旋钮(9)与所述外套管(702)固接并带动所述外套管(702)同步旋转。
- 根据权利要求4所述的安全型高频电刀手术器械,其特征在于:所述刀片(3)的刀杆(301)穿设于所述内套管(701)内,所述刀片(3)活动卡设于所述第一钳口(201)和第二钳口(202)之间的活动槽(221)内。
- 根据权利要求12所述的安全型高频电刀手术器械,其特征在于:所述刀片控制机构还包括进刀卡扣(403)和刀片复位弹簧(404),所述进刀卡扣(403)与所述刀杆(301)连接,所述刀片复位弹簧(404)套设于所述内套管(701)上,并与所述进刀卡扣(403)抵 接,所述控制按钮(4)通过所述触发连杆(402)与所述进刀卡扣(403)连接,所述壳体(1)内设置有按钮导向槽(405),所述控制按钮(4)沿所述按钮导向槽(405)滑动并控制所述进刀卡扣(403)沿所述内套管(701)移动,来驱动所述刀片(3)移动。
- 根据权利要求1所述的安全型高频电刀手术器械,其特征在于:所述控制扳手(2)上设置有凸柱(8),所述凸柱(8)位于所述锁止凸块(5)的上方,所述触发连杆(402)上设置有与所述凸柱(8)相匹配的凹部,所述凸柱(8)和所述触发连杆(402)的凹部形成辅助回退机构,当所述控制扳手(2)回退时,所述凸柱(8)与所述触发连杆(402)上的凹部抵接并驱动所述触发连杆(402)同步回退,所述控制按钮(4)跟随所述触发连杆(402)同步回退。
- 根据权利要求1-14任一所述的安全型高频电刀手术器械,其特征在于:所述控制扳手(2)为U型开放式结构或封闭环形结构。
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CN114617631A (zh) * | 2022-01-24 | 2022-06-14 | 以诺康医疗科技(苏州)有限公司 | 安全型高频电刀手术器械 |
CN114886550B (zh) * | 2022-04-15 | 2023-03-21 | 以诺康医疗科技(苏州)有限公司 | 具有可通断滑触环结构的枪式电刀 |
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